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Stochastic Resonance
Signal+Noise
SNR Curve
Bistable Well
Noise D
0.3
Signal A (subthreshold)
0.5
Signal freq f
0.05
Threshold: 1.0
Crossings: 0
SNR: 0.0
Bistable: V(x) = -x²/2 + x⁴/4
Threshold θ = 1.0
Optimal D* ≈ θ²/4